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Questions tagged [concrete-block]

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2answers
57 views

Floating desk on concrete block wall

I have a concrete block wall with dot and dab plasterboard. I am looking to attach a wall to wall floating desk to it. I appreciate a number of questions relating to floating desks have been asked ...
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2answers
60 views

Lard as release agent?

So I’m learning how to make concrete pavers with this youtube video. He mentions that he uses lard as a release agent, so he brushes that into the mold. He also suggests cooking oil or motor oil for ...
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2answers
114 views

How do I build a fence with zero experience?

I've never built a fence or have never done any outdoor construction. I'm pretty handy and do most of my interior maintenance. I have a total of 780 feet where I need to put up a fence. I'm still ...
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0answers
20 views

Recommendations for fixing 1/2 inch difference in retaining wall height under pavers

I'm working on installing a patio that is held up by a retaining wall on one side and has blocks around most of the rest where it is adjacent to a deck. For the most part, the blocks are level and ...
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0answers
75 views

How serious is this spalling?

Spalling is occurring on the corner of the top of the first story. I'm curious as to how serious this is.
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0answers
28 views

Painted house that the previously applied mortar was done sloppy

We are looking to repaint the house(all block) but whoever applied the original mortar did a streaky job. Is there anything I can add to the paint to correct the steaks in it without having to ...
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1answer
79 views

What is best way to make up difference between concrete and drywall in garage

The bottom part of wall in the carport was never covered with drywall. The distance from floor to bottom is around 9-10 inches. The bottom area is concrete blocks. The issue is distance from outer ...
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3answers
365 views

Mounting a pull up bar on hollow concrete block wall

I’m trying to mount a Pull-up bar like this one on a hollow concrete block wall. I’m planning on using some concrete sleeve anchors, but I also have seen people anchor some wood planks into the wall ...
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1answer
274 views

How to wall-mount to a “resilient channel” wall?

first SE post! MY QUESTION: How do I safely attach an articulating mount (tilt/pan) for a 75" LCD TV to a "sound deadening" wall that uses resilient channels? Thanks to the miracle of the ...
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2answers
262 views

Mounting a TV to Concrete Through Wood Paneling and Air Gap

I have a bit of a tricky question in regards to mounting my 65" TV. I have 3/4" knotty pine tongue and groove vertical wood paneling on my basement interior wall. The wall divides my finished and ...
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2answers
604 views

Hanging large TV and media cabinet on cement block covered with drywall

I'm planning on hang a 75" TV and a media center on my wall. It is cement block covered with drywall. Drywall is installed using some sort of metal furring strips so there are no studs. I believe all ...
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1answer
101 views

Drywall on conrete ceiling without studs, weight issues?

I have a question regarding heavy drywall hanging on a ceiling. I need to hang drywall ceiling without any studs (drywall designed for moisture, vapor barrier, straight onto concrete ceiling). I ...
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0answers
24 views

Ok to use green Spax lags as anchors in block wall?

I've got a basement project where I'm attaching 3in studs over 1 inch foam to a block wall (built ~1952). I was planning on using Tapcons, but the threads are not holding. The 1/4 green Spax lags look ...
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2answers
572 views

What to use to backfill around the concrete pier block?

Given the image above: What should I use to backfill the hole around the concrete pier block? I am thinking to use one of the following: (1) Paver base (again) (2) Gravel (3) Just the dirt that I ...
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2answers
240 views

Can you polish a concrete pier block?

I've been searching google for awhile but can't find a straight answer (every link is about walls/floors): Can I polish (or sand to be smoother at least) a concrete pier block? I have this one from ...
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2answers
2k views

Mounting TV on Thick Drywall + 1" Stud + Concrete blocks

I am trying to mount my 55" TV to the wall in our basement. It is an old (~1930) semi-detached house and I am a mounting it to the shared wall. As best as I can figure out, we have 1.5" drywall ...
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1answer
2k views

Filling large hole in concrete floating floor

I have a big hole in my kitchen floor (inserting a beam and post to take down a load bearing wall), and I'm now left with having to fill this hole (after dumping around 300 mm of concrete on the post ...
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1answer
167 views

Cutting Concrete Block Wall

I have an outdoor BBQ Island that has a grill and refrigerator installed in it. The Island is made out of 5 3/4" concrete block with wood top and tile on top of that. Right now I have a A/V Receiver ...
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1answer
76 views

Securing range hood with tile & concrete behind—should I pre-drill wider?

I need to secure a range hood on my new subway tile backsplash. Behind the tile is the thinset, drywall, then concrete block. I don't think my furring strips are ideally located for mounting purposes. ...
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2answers
89 views

Why are the deck footing blocks set away from the house several inches in this video?

I watched this video (building a free-standing porch) and wondered what is the reason that the back concrete blocks are not tight to the house wall. Basically he places them away from the house by a ...
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2answers
249 views

Are concrete blocks a cost effective, modern and strong solution to building a house? [closed]

I do many different house designs in SketchUp. With a 500,250,250mm concrete brick I believe I could create the walls for a house for as little as £1,000. Roughly 1k bricks will be needed to create ...
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1answer
2k views

How to insulate a concrete block shed - material / method

I've got a shed built of big solid concrete blocks, that also has a concrete floor. I want to insulate the whole lot so it can be fit for human habitation – so I need to insulate the floor, walls and ...
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2answers
62 views

84' wall leans 5",17' out. Pulling to plumb, + columns, save wall?

84' wall leans 5",17' out. Pulling to plumb, add columns, save wall? (https://i.stack.imgur.com/JvnVY.jpg)
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1answer
878 views

Mitigating an out of plumb foundation wall

My wife and I bought a house (built in 1985, Atlanta GA suburbs) with a fully finished basement that recently had a hot water heater leak that ruined the laminate floor. This disaster actually was ...
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1answer
318 views

Water on block foundation wall

I have water on the top 4 feet of my basement foundation wall. This goes around almost the entire perimeter of the basement. The bottom 4 feet of blocks are dry. Any ideas the cause? Can someone ...
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1answer
97 views

Centering new construction windows in CMU rough opening by notching rough opening and inserting nail fins in notch… Doable?

My Block man obviously could not read blueprints and I am left with upstairs cmu rough openings that barely meet egress codes. Want window centered in block ( not attached to interior framing. Can I ...
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2answers
781 views

Building a thick concrete pad

Concrete newbie here. I am building a concrete pad for an A/C unit in an already excavated area of the yard (new plant bed). The excavated area is around 8" deep. I want to build a 4'x4'x16" concrete ...
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1answer
636 views

Best way to cover stair using concrete retaining wall block

I have spent 3 days creating this stair and I still don't like to look. The reason is that I have tons of those retaining wall blocks so I have to use them all to create the stair. The first try was ...
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1answer
371 views

What causes air voids in concrete?

Really have no idea on what causing concrete to have air voids in it. Is it causes by evaporation of water during the hydration process?
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1answer
72 views

Where can I find these textured cast concrete blocks?

I am trying to match up some old blocks but ain't having much luck. Would anybody know the name or style of the block?
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1answer
507 views

Layout method using concrete retaining wall block for angled wall

I am planning to use the rectangular 12x4 retaining wall blocks as below http://www.lowes.com/pd_357656-215-30732___?productId=3722166 This is because we like the design of this better than using ...
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1answer
2k views

Maximum retaining wall height

Some retaining walls from the home improvement store stated that Maximum Wall Height is 2 feet. For example, Tranquil Olde Manor Concrete Retaining Wall Block from Lowes. My question is that why there ...
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1answer
119 views

How to build a CMU wall to specific size?

My current design for a garage is 24' by 24'. There are 2 garage doors on the front 9' in width, with 1 1/2" on each side to install them into. This leaves 66" for the front facing CMU wall, which is ...
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1answer
2k views

How to lay concrete block without squishing all the mortar?

I'm laying a small retaining wall for a garden and I'm having a lot if trouble getting a proper mortar joint. If it is on the soft side it is squished out of the joint with the weight of the block. ...
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4answers
10k views

Can I skim coat a painted interior concrete block wall? If so, with what & how?

Can I skim coat a painted interior concrete block wall? If so: What can I use to prepare the wall? What material should I use (joint compound, plaster, other)? All DIY so simpler the better.
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2answers
7k views

How to cut concrete block with a circular saw

I have some concrete blocks that are 4 inches by 6 inches. I need to cut them in half at a 45 degree angle. Can I do this with a circular saw and a masonry blade ? I would also make a jig to cut ...
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1answer
385 views

What type of anchor for fastening to block wall?

So, I started with What type of screws and anchors are used for concrete? - but it's not particularly clear to me. I (hammer) drilled 5/32" holes into an exterior wall for 3/16" tapcon screws. These ...
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2answers
117 views

Trying to finish a full basement but footers arent deep enough?

I have a full basement that we are wanting to finish, we hired a contractor to come out and estimate and he said we couldn't do it at all because of the slope of the land the footers weren't deep ...
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1answer
948 views

destroy a wall that is useless

I'm new to building or destroying things in that occasion. I have a wall that is not supporting the roof or any other part of the house. Removing that wall will help me build an extension of a room ...
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1answer
225 views

How to minimise the amount of concrete needed for a shed foundation?

I’m looking to build a 6m by 3m shed in the back garden. It will be jammed in between 3 neighbours’ gardens, so it will have to be less than 2.5m high. Roof will most likely be a low grade pitch with ...
2
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1answer
749 views

How can I paint concrete blocks without trapping moisture?

I have a shed/laundry that is a separate building from my house. It's made of concrete blocks sitting on top of a poured concrete slab. Currently the inside is bare, which is dark and drab. I want to ...
2
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1answer
220 views

Load considerations on framing members that are only attached to concrete?

I am building out a workshop space in my basement, and want to put up framing on the walls, as shown here: Specifically the left wall and the far wall, both of which have a lip. The foundation blocks ...
3
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3answers
4k views

Repair cracks in concrete block wall that's no longer moving

I'm fixing up my detached garage built in the early 1900's. At some point there was some movement in the walls (not the slab, the walls are built next to the slab). There doesn't seem to be any more ...
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2answers
4k views

How can I install a new internal nonbearing concrete block wall in basement to partition off for bathroom?

house is built of concrete blocks, so basement floor is poured concrete and ceiling also. Want to know how to secure wall being built to ceiling and not having wall collapse
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0answers
63 views

Repairing concrete block on inner part of basement

I have had water seepage into my basement through concrete block for many years. The exterior part of the block is covered by a deck and patio and is not easy to get to. I've mitigated a lot of the ...
2
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2answers
5k views

How can I remove a parking block from my garage?

So, builders have this thing, for some reason, of installing cement parking blocks a few feet in front of the hot water heater in the garage. I've lived at plenty of places without those and managed ...
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0answers
628 views

Converting garage into living room?

We want to convert the garage into the living room. Our house has a crawl space under it. But the garage is a slab with cinder blocks around it. Water comes in through the garage door when it rains ...
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1answer
2k views

How to keep a block wall from blowing out at the bottom

I am hiring block masons to build me a 24' x 44' block building, and I want to know how to keep the lower courses of blocks from bowing under pressure of 3 feet of dirt backfill or weight from the ...
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1answer
10k views

How wide does a 6x6 concrete post footing needs to be?

Need to attach 6x6x8 posts for a free-standing pergola - I'll use Strong-Tie anchors attached to the concrete footing. The hole for the footing will reach well below the freezing line, but how wide ...
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1answer
804 views

Can a concrete block be split the same way you cut stone?

I just bought a house with a large retaining wall built out of stackable concrete blocks. At one intersection there's an extra block that sticks out awkwardly. If I score a line with a chisel can I ...